It has been reported that 20% of the people who made online purchases last year used PayPal
Question:
a. Use the normal sampling distribution of the sample proportion to test a null hypothesis that the PayPal usage rate is .20 or less this year. Use a significance level of .05. Find the pvalue for the sample result and report your conclusion.
b. Suppose the sample size had been 25 rather than 200 and nine people in the sample reported using PayPal at least once this year. Repeat the test in part a using this reduced sample size. Use the binomial distribution to conduct the test. Find the pvalue for the sample result and report your conclusion. Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...
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a 138600 23z stat 2320016 188 Critical value version For a 5 significance leve...View the full answer
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Related Book For 
Understanding Business Statistics
ISBN: 978-1118145258
1st edition
Authors: Stacey Jones, Tim Bergquist, Ned Freed
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